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Thermador
Gas Cooktop

Model # CGX304U Official Thermador gas cooktop

Here are the diagrams and repair parts for Official Thermador CGX304U gas cooktop, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 51 parts  |
Solenoid 20-02-500
#5

Rough-in box diagram

Solenoid

Part #20-02-500

Replaced by #00411253

?
Manufacturer substitution
This part replaces 20-02-500. Substitute parts can look different from the original.
$192.49 | 
6% OFF Phone Price : $204.49
In Stock
Plug 20-02-377
#6

Maintop diagram

Plug

Part #20-02-377

Replaced by #00189324

?
Manufacturer substitution
This part replaces 20-02-377. Substitute parts can look different from the original.
$35.49 | 
14% OFF Phone Price : $41.49
In Stock
Cooktop Burner Cap 20-02-021-04
#17

Maintop diagram

Cooktop burner cap

Part #20-02-021-04

Replaced by #00189336

?
Manufacturer substitution
This part replaces 20-02-021-04. Substitute parts can look different from the original.
$77.49 | 
7% OFF Phone Price : $83.49
In Stock
Oven Switch 14-33-936
#10

Controls and tubing diagram

Oven switch

Part #14-33-936

Replaced by #00189008

?
Manufacturer substitution
This part replaces 14-33-936. Substitute parts can look different from the original.
$33.59 | 
15% OFF Phone Price : $39.59
In Stock
Venturi 20-02-396
#1

Maintop diagram

Venturi

Part #20-02-396

Replaced by #00189321

?
Manufacturer substitution
This part replaces 20-02-396. Substitute parts can look different from the original.
$46.44
In Stock
O-ring 20-02-018-02
#11

Maintop diagram

O-ring

Part #20-02-018-02

This item is not returnable
$4.52
In Stock
Screw 14-91-118
Screw

Part #14-91-118

$77.99
In Stock
Ring 20-02-042
#8

Maintop diagram

Ring

Part #20-02-042

This item is not returnable
$3.99
Back Order
O-ring 20-02-018-01
#3

Maintop diagram

O-ring

Part #20-02-018-01

Replaced by #00189317

?
Manufacturer substitution
This part replaces 20-02-018-01. Substitute parts can look different from the original.
This item is not returnable
$27.27 | 
18% OFF Phone Price : $33.27
In Stock
Burner 20-02-016
#2

Maintop diagram

Burner

Part #20-02-016

Replaced by #00189316

?
Manufacturer substitution
This part replaces 20-02-016. Substitute parts can look different from the original.
$56.40
In Stock

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Repair difficulty
Time required
 30 minutes or less

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